If you take the brittle and whiz it up in a cuisinarts you get praline powder. Fold this into your spun ice cream and freeze to harden. It ends up being lovely pockets of praline, with whatever toasty nuts you choose to use giving the ice cream a nice contrasting flavor. Walnut praline, pistachio praline, peanut...endless possibilities and no hard chards.

Delicious, yes, but I wonder about the texture of candied ginger, which is rather soft and gummy. I love it by itself and in baked goods, but I don't know if i would like it in ice cream. I would suggest a hard candy with a strong ginger flavor broken up into small pieces. Or the gingersnaps. Nuts would also be good. Pistachios would provide a nice color contrast with the ice cream. I'd do one or the other: nuts or ginger/snaps but not both.